speedup test_pyrepl

[chris-eibl]

Speedup test_pyrepl by speeding up test_unix_console.py / test_windows_console.py. Especially in case of Windows, almost all the time is spent there, and these tests are unnecessarily slow because they are not mocking wait:

cpython/Lib/_pyrepl/unix_console.py

Lines 419 to 427 in d134bd2

	def wait(self, timeout: float | None = None) -> bool:
	"""
	Wait for events on the console.
	"""
	return (
	not self.event_queue.empty()
	or self.more_in_buffer()
	or bool(self.pollob.poll(timeout))
	)

cpython/Lib/_pyrepl/windows_console.py

Lines 523 to 532 in d134bd2

	def wait(self, timeout: float | None) -> bool:
	"""Wait for an event."""
	# Poor man's Windows select loop
	start_time = time.time()
	while True:
	if msvcrt.kbhit(): # type: ignore[attr-defined]
	return True
	if timeout and time.time() - start_time > timeout / 1000:
	return False
	time.sleep(0.01)

The tables show the times in seconds.

Linux 64bit debug build (only tested in WSL):

• ./python -m test -u curses test_pyrepl
• ./python -m test -u curses test_pyrepl.test_unix_console

	test_pyrepl	test_unix_console
before	17.7	10.8
after	7.4	0.2

Windows 64bit debug build:

• python.bat -m test test_pyrepl
• python.bat -m test test_pyrepl.test_windows_console

	test_pyrepl	test_windows_console
before	19.1	16.5
after	3.7	1.0

I've marked as skipped news - and think this is also a skip issue?

[pablogsal]

Awesome! Thanks a lot for the find. Great work 🚀